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Diagnostic Test-calculates Sensitivity, Specificity, PPV, NPV, LR+, and LR-; Prospective Study- calculates Relative Risk (RR), Absolute Relative Risk (ARR), and Number Needed to Treat (NNT); Case-control Study-calculates the O.
This calculator can determine diagnostic test characteristics (sensitivity, specificity, likelihood ratios) and/or determine post-test probability of disease given the pre-test probability and test characteristics.
